Step 1

Prepare the kishka: In the bowl of a food processor fitted with the “S” blade, puree the vegetables.

Step 2

Add remaining ingredients; mix to combine.

Step 3

Place the mixture in a rectangular piece of parchment paper. Roll up tightly, making sure both ends are closed, to ensure that it doesn’t leak while cooking. Set aside.

Step 4

Prepare the cholent: In a small bowl, combine salt, paprika, and garlic powder. Set aside.

Step 5

In a medium bowl, toss potatoes, sweet potatoes, onions, and flanken with the spice mixture. Place into a slow cooker.

Step 6

In a small bowl, dissolve potato starch in the water. Add ketchup and wine. Add to slow cooker. Place prepared kishka into cholent.

Step 7

Cook on low until ready to serve, 12 hours or overnight, until flanken is tender.