Ingredients
Method
- Mix Batter – Beat sugars, eggs, and vanilla 2 minutes until pale. Stream in oil and ⅓ cup cookie butter.
- Dry Ingredients – Whisk flour, baking powder, salt, cinnamon, and ginger. Add to wet mixture alternating with milk; don’t over‑mix.
- Bake – Pour into greased 9 × 13 pan. Bake at 350 °F for 28–31 minutes until toothpick tests clean. Cool completely.
- Cut Rounds – Use a 2‑inch cutter to punch out 24 cake circles (makes 12 mini cakes).
- Make Buttercream – Beat butter and ½ cup cookie butter until light. Mix in vanilla, salt, and powdered sugar, thinning with cream to a pipeable consistency.
- Fill – Pipe a buttercream ring on 12 circles; spoon 1 tsp cookie butter in the center. Cap with remaining circles.
- Frost & Decorate – Pipe tall swirls of buttercream, press in half a biscuit, and sprinkle crumbs.
Notes
Freeze undecorated cake rounds up to 1 month.
For crunch, add a layer of crushed biscuits between cake and filling.