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Decadent Homemade Ice Cream Sandwiches | Easy No-Bake Frozen Treat

No-bake ice cream sandwiches with a soft, chocolate crumb 'cookie' layer and a slab method for clean, bakery-style cuts. Simple to assemble, customizable, and freezer-friendly.
Prep Time 30 minutes
Total Time 6 hours 30 minutes
Servings 12 sandwiches

Ingredients
  

Ingredients

  • 3 cups finely crushed chocolate wafer cookies or chocolate graham crackers
  • 1/2 cup unsalted butter, melted
  • 2 tablespoons light corn syrup or maple syrup
  • Pinch of fine sea salt
  • 1 teaspoon vanilla extract
  • 2 to 3 tablespoons milk, as needed
  • 1.5 quarts ice cream (vanilla, chocolate, or preferred flavor), slightly softened
  • About 1 cup optional mix-ins (mini chocolate chips, crushed cookies, sprinkles, or chopped nuts)
  • Optional coatings: mini chocolate chips, sprinkles, or toasted coconut
  • Optional chocolate shell: 1 cup chocolate chips melted with 2 tablespoons coconut oil

Instructions
 

Instructions

  • Line a 9x13-inch baking pan with parchment, leaving overhang on two sides.
  • Let the ice cream sit at room temperature 10–15 minutes until scoopable but not melted.
  • Crush the cookies into fine crumbs using a food processor or a rolling pin in a zip-top bag.
  • Stir together the crumbs, melted butter, corn syrup or maple syrup, salt, and vanilla.
  • Add milk 1 tablespoon at a time until the mixture feels like damp sand that clumps when pressed.
  • Divide the crumb mixture in half.
  • Press one half firmly and evenly into the lined pan to form the bottom layer.
  • Freeze the pan for 10–15 minutes to set the base.
  • Fold optional mix-ins into the softened ice cream, keeping it thick and cold.
  • Spread the ice cream evenly over the chilled base and smooth the top.
  • On a sheet of parchment, press the remaining crumb mixture into a rectangle roughly the size of the pan.
  • Transfer or flip the top layer onto the ice cream, patching gaps and pressing gently to adhere.
  • Cover tightly and freeze until solid, at least 6 hours or preferably overnight.
  • Lift the slab out using the parchment overhang and place it on a cutting board.
  • Warm a sharp knife in hot water, wipe dry, and cut into 12–16 rectangles, rewarming and wiping between cuts.
  • Optionally dip the sides in coatings or drizzle with chocolate shell and freeze 10 minutes to set.

Notes

Store individually wrapped sandwiches in parchment or wax paper in an airtight container or zip-top bag for up to 1 month. Let a sandwich sit at room temperature 3–5 minutes before eating. If you don’t have corn syrup, use maple syrup or honey; if skipping entirely, add 1 tablespoon butter and 1 tablespoon milk. Use two 8x8 pans or a rimmed sheet pan if you don’t have a 9x13, keeping thickness even. Don’t use overly soft ice cream, don’t skip firmly pressing the crumb layers, and allow a full freeze for clean cuts. Gluten-free, dairy-free, and flavor variations are easy by swapping cookies, ice cream, and mix-ins.