Crock Pot Ruth's Chris Sweet Potato Casserole (With a Topping That Actually Stays Crunchy)

Thanksgiving, three years ago. Turkey in the oven, rolls waiting their turn, green beans needing 350°F at the exact moment the sweet potatoes did. Something had to move. So the sweet potato casserole went into the Crock-Pot, and that first try is the reason this Crock Pot Ruth’s Chris Sweet Potato Casserole exists. The filling was fine. The famous brown sugar pecan crust, the whole reason anyone orders this side at the steakhouse, came out like wet sand. Three hours under a lid will do that.

The fix for my Crock Pot Ruth’s Chris Sweet Potato Casserole turned out to be simple: the filling cooks in the slow cooker, the pecan crumble gets toasted in a skillet on the stovetop, and the two meet right before serving. No oven at all. The top shatters when the spoon goes in, and the filling underneath stays smooth and custardy, the way the restaurant version is.

At a glance
Slow cooker	7-quart oval (6-quart works, see notes)
Cook time	2 to 2½ hours on HIGH
Oven needed	No
Serves	10 as a side

Why This Crock Pot Ruth’s Chris Sweet Potato Casserole Works

Most slow cooker versions put the raw streusel on top of the filling at the start. Steam rises off the sweet potatoes, hits the lid, drips straight back down, and the flour in the topping soaks it up. You get paste. Toasting the crumble separately in butter cooks the flour and melts the brown sugar into clusters, so by the time it lands on the casserole there’s nothing left in it to go soggy.

The towel under the lid matters for the filling too. Without it, those drips pool in the low spots and leave the casserole weepy around the edges, which is the most common complaint about this recipe even when it’s baked.

And the potatoes are microwaved or roasted, never boiled. Boiled sweet potatoes hold extra water, and a slow cooker has nowhere for that water to go. In the oven it would bake off. Here it just sits there.

Three eggs instead of the usual two, for a similar reason. Moist heat sets custard more gently than dry oven heat, and that third egg is what gives you clean spoonfuls instead of a loose mash.

A Quick Word on the Butter Mix-Up

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If you’ve looked at more than one version of this recipe, you’ve probably noticed the butter amounts don’t agree. The recipe Ruth’s Chris shares on its own site uses equal small amounts in the filling and the crust, while plenty of copied versions put far more in the filling than the crust, and some readers swear the chef’s demo did the opposite.

Here’s where I landed after cooking this Crock Pot Ruth’s Chris Sweet Potato Casserole both ways: more butter in the crust, less in the filling. The crust is where butter does its job, turning flour and sugar into something crisp and toffee-like. Extra butter in the filling just slicks the top and adds to the weeping problem in a slow cooker. So this version uses a full stick in the topping and 6 tablespoons in the potatoes.

Ingredients

For the sweet potato filling

3 pounds sweet potatoes (about 4 medium), to give 4 cups mashed
¾ cup granulated sugar
6 tablespoons unsalted butter, melted
3 large eggs, beaten
1½ teaspoons vanilla extract
½ teaspoon kosher salt
Butter or a slow cooker liner, for the crock

For the toasted pecan crumble

½ cup (1 stick) unsalted butter
1½ cups chopped pecans
½ cup all-purpose flour
1 cup packed light brown sugar
¼ teaspoon kosher salt

The sugar in the filling is lower than the classic recipe. On purpose. The crumble brings a full cup of brown sugar, and with the original amount in the base, this tastes like pie filling rather than a side dish. Nobody at my table missed it.

Fresh or Canned Sweet Potatoes?

Fresh tastes better, mostly because microwaving or roasting concentrates the flavor. But canned works and saves real time on a holiday.

Fresh: Prick the sweet potatoes all over with a fork. Microwave on a plate for 12 to 15 minutes, turning them halfway, until a knife slides through the thickest one with no resistance. Or roast them the day before at 400°F for 50 to 60 minutes. Scoop the flesh out while warm.

Canned: Two 29-ounce cans of cut sweet potatoes in syrup gives you about 4 cups once mashed. Drain them, rinse off the syrup under cool water, then blot dry with paper towels. Drop the granulated sugar to ½ cup, since canned ones carry extra sweetness even after rinsing.

Skip the boiled ones. See above.

How to Make Ruth’s Chris Sweet Potato Casserole in a Crock Pot

Prep the crock. Butter the inside of a 7-quart oval slow cooker well, or use a liner. A strip of parchment laid across the bottom and up both long sides makes it easy to lift out portions later, but it’s optional.
Mash and sweeten. In a large bowl, mash the warm sweet potatoes with the melted butter. Add the granulated sugar, salt, and vanilla, then beat with a hand mixer on medium for about 1 minute, until completely smooth. The restaurant version has no lumps, and a potato masher alone won’t get you there.
Cool, then add eggs. Let the mixture sit for 10 minutes so it’s warm, not hot. Beat in the eggs on low just until blended. Hot potatoes plus eggs equals scrambled bits in your casserole.
Fill the slow cooker. Spread the filling evenly in the crock and smooth the top with a spatula.
Add the towel. Stretch a clean, dry kitchen towel (or a double layer of paper towels) across the top of the crock, then set the lid on over it. Fold the overhanging edges up onto the lid so they don’t touch the heating element.
Cook. Cook on HIGH for 2 to 2½ hours, or LOW for 3½ to 4 hours. Most slow cookers run hotter at the back, so if yours does, give the insert a half turn about halfway through.
Toast the crumble while it cooks. Melt the stick of butter in a large skillet over medium-low heat. Add the pecans and stir for 3 minutes, until they smell nutty. Sprinkle in the flour and stir for 1 minute. Add the brown sugar and salt and keep stirring for 3 to 4 minutes, until the sugar melts and everything clumps together and smells like toffee. Tip it onto a sheet of parchment, spread it out, and let it cool for at least 15 minutes. It crisps as it cools. Break it into clusters with your fingers.
Check doneness. The edges should be set and slightly puffed, and the center should barely wobble when you nudge the crock. Take the temperature in the middle; you want 160°F, which is the safe minimum for egg dishes.
Rest, then top. Remove the lid and towel, switch the slow cooker to WARM, and let the casserole sit for 20 minutes to firm up. Scatter the pecan crumble over the top right before it goes to the table.

Tips From the Test Batches

Watch the back edge. On the second test of this Crock Pot Ruth’s Chris Sweet Potato Casserole, the hot side of my 7-quart Crock-Pot caramelized the edge a little by the 2-hour mark. Honestly? Those dark bits were the best part. But at 2½ hours, that same edge started heading toward bitter, so start checking at 1¾ hours.

6-quart oval: Same amounts, same method. The layer is deeper, so add 20 to 30 minutes.

Round 5-quart or smaller: It works, but the center lags well behind the edges. Lean on the thermometer, not the clock.

The crumble firms up fast. Spread it thin on the parchment while it’s hot. Leave it in a pile and it cools into one big brick, and then you’re chopping toffee with a knife.

Don’t swap the hand mixer for a blender or food processor. Overworked sweet potato turns gluey.

Variations

Bourbon: Add 1 tablespoon to the filling with the vanilla. Subtle, a little smoky, very good next to ham or steak.

Orange zest: Zest of one orange in the filling cuts the sweetness and makes the whole dish taste brighter.

Warm spice: ½ teaspoon cinnamon and a pinch of nutmeg in the filling. The original has neither, which is part of why it tastes cleaner than most sweet potato casseroles, so I keep it light.

Nut-free: Swap the pecans for old-fashioned rolled oats and toast them the same way. Less rich, still crunchy.

Marshmallows: Skip them here. I tried a layer on top during the last 30 minutes, and on the warm setting they melted into a sticky foam that slid off every spoonful. If marshmallows are non-negotiable at your table, make a different casserole for that.

Make-Ahead, Storing, and Freezing

The day before: Mix the filling completely, eggs included, and refrigerate it covered in a bowl for up to 24 hours. Spread it into the crock straight from the fridge and add about 30 minutes to the cook time.

The crumble: Toast it up to 3 days ahead and keep it in an airtight container at room temperature. Better than a day-of job, honestly.

What doesn’t work ahead: Putting the crumble on the casserole and then holding it. Even 45 minutes on WARM with the lid on softens it. Top it at the last minute or set the crumble in a bowl next to the crock and let everyone sprinkle their own.

Holding on WARM: The casserole itself (no topping) holds well on WARM, uncovered, for up to 2 hours.

Leftovers: Refrigerate covered for up to 4 days. Store the leftover crumble separately if you can. Reheat portions in the microwave for 60 to 90 seconds.

Freezing: The cooked filling freezes for up to 3 months. Thaw overnight in the fridge and reheat. The crumble freezes too, but it comes back slightly soft, so give it 2 minutes in a dry skillet to crisp it again.

Frequently Asked Questions

Can you make Ruth’s Chris sweet potato casserole in a slow cooker?

Yes. The filling is basically a sweet potato custard, and a slow cooker sets custard gently and evenly. The only part that doesn’t survive the slow cooker is the pecan crust, which is why this version toasts it on the stovetop instead.

Why is my slow cooker sweet potato casserole watery?

Usually boiled sweet potatoes, condensation dripping off the lid, or both. Microwave or roast the potatoes, and put a towel under the lid.

Should the pecan topping go on before or after slow cooking?

After. Every time. I know some recipes put it on at the start, and I understand why, since it’s one less step. But a raw flour-and-sugar topping under a closed lid for two hours can’t turn crisp. It can only turn damp. If you want any crunch at all, toast it separately.

How long can sweet potato casserole stay on warm in a Crock-Pot?

A finished Crock Pot Ruth’s Chris Sweet Potato Casserole holds on WARM for up to 2 hours, uncovered, before the edges start to dry out. Keep the topping off until serving.

Is Ruth’s Chris sweet potato casserole a side dish or a dessert?

It’s served as a side at the steakhouse, and it belongs next to something salty. That said, with the original sugar levels it really did eat like dessert, which is exactly why this version uses less.

Can I double this recipe in one slow cooker?

I wouldn’t. Doubled, the filling sits almost 4 inches deep in a 7-quart, and the edges overcook long before the center reaches 160°F. Two slow cookers side by side is the better move, and the crumble doubles easily in a 12-inch skillet.

Can I use yams instead of sweet potatoes?

What most US grocery stores label “yams” are orange sweet potatoes, so yes, those work exactly the same. True yams are drier and starchier and won’t give you the same smooth texture.

Serve It the Steakhouse Way

At Ruth’s Chris, this casserole shows up next to a steak sizzling in butter, and that pairing makes more sense than turkey once you try it. The salt and char on the beef are what keep the sweetness in check. So outside of the holidays, this Crock Pot Ruth’s Chris Sweet Potato Casserole is my move for a Sunday steak night at home: casserole cooking in the Crock-Pot all afternoon, a cast-iron seared ribeye finished with a spoonful of butter, and a bowl of plain steamed green beans to break things up. The oven never gets turned on. In summer, that’s a real selling point.

Crock Pot Ruth’s Chris Sweet Potato Casserole (With a Topping That Actually Stays Crunchy)

Why This Crock Pot Ruth’s Chris Sweet Potato Casserole Works

A Quick Word on the Butter Mix-Up

Ingredients

Fresh or Canned Sweet Potatoes?

How to Make Ruth’s Chris Sweet Potato Casserole in a Crock Pot