Line a 6-quart slow cooker with a disposable liner or spray generously with cooking spray.
Drain sweet potatoes. Add all the ingredients listed under “sweet potatoes” to a large bowl attached to a stand mixer (or use a hand mixer). Beat until the mixture is completely smooth. Pour into the bottom of a slow cooker, smoothing the top.
In a medium bowl, add all the ingredients listed under “topping.” Stir well, using your fingers to mix until crumbles form. If mixture is too wet, add 1–2 tablespoons additional flour. Sprinkle evenly over the sweet potato layer, but do not press it down.
Cover the slow cooker and cook on high for 2-1/2 to 4 hours, depending on how hot your appliance cooks. (Don’t cook on low—it doesn’t work). Edges will be lightly browned and set; center should look firm). Turn off the Crock-Pot, remove lid, and let stand for 20 minutes to firm up a bit. Serve and enjoy!
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Notes
Note 1: Canned sweet potatoes/yams: While sweet potatoes and yams are different, a lot of grocery stores use interchangeable labeling with the two.Note 2: Use regular evaporated milk (not low-fat/fat-free). Alternatively, use whole or 2% milk. Don’t confuse evaporated milk with sweetened condensed milk.Storage: Keep in an airtight container in the fridge for up to 3 days. Freeze for up to 3 months. Defrost in the fridge.