Cosmic brownie cookie ice cream sandwich
Cosmic brownie cookie ice cream sandwich is a medium American recipe that serves 12. 350 calories per serving. Recipe by Jesha Ann Stevens on YouTube.
Prep: 12 hrs 15 min | Cook: 20 min | Total: 12 hrs 50 min
Cost: $21.79 total, $1.82 per serving
Ingredients
- 1/4 cup Active Sourdough Starter (100% hydration, fed 4‑6 hours before use)
- 1 1/2 cups All-Purpose Flour (sifted)
- 1/2 cup Unsweetened Cocoa Powder (Dutch‑processed for deep flavor)
- 3/4 cup Granulated Sugar (fine)
- 1/2 cup Brown Sugar (packed)
- 1/2 cup Unsalted Butter (softened, cut into cubes)
- 1 Large Egg (room temperature)
- 1 tsp Vanilla Extract (pure)
- 1/2 tsp Baking Soda
- 1/4 tsp Salt
- 1 cup All‑Natural Rainbow Chocolate Chips (made from rich ganache frosting, natural colors)
- 4 oz Dark Chocolate (70% cacao) (chopped)
- 1/2 cup Heavy Cream
- 1 tbsp Unsalted Butter (for ganache) (cut into pieces)
- 1 pint Premium Vanilla Ice Cream (softened slightly for scooping)
Instructions
Feed and Activate Sourdough Starter
Discard half of your starter, feed the remaining 1/4 cup with equal parts flour and water, and let it sit at room temperature for 4‑6 hours until bubbly.
Time: PT15M
Combine Dry Ingredients
In a mixing bowl whisk together the flour, cocoa powder, baking soda, and salt until evenly distributed.
Time: PT5M
Cream Butter and Sugars
Using a stand mixer on medium speed, cream the softened butter with granulated sugar and brown sugar until light and fluffy, about 3‑4 minutes.
Time: PT5M
Add Egg, Vanilla, and Starter
Add the egg, vanilla extract, and the active sourdough starter to the butter‑sugar mixture. Mix on low until just combined.
Time: PT3M
Combine Wet and Dry, Fold in Chocolate Chips
Gradually add the dry ingredient mixture to the wet mixture, mixing on low. Once a shaggy dough forms, fold in the rainbow chocolate chips by hand.
Time: PT5M
Bulk Fermentation
Cover the bowl with a damp towel or plastic wrap and let the dough ferment at room temperature for 12 hours (or overnight). It will puff slightly and develop a subtle tang.
Time: PT12H
Chill the Dough
After fermentation, place the dough in the refrigerator for 30 minutes to firm up for easier handling.
Time: PT30M
Preheat Oven
Preheat the oven to 350°F (177°C).
Time: PT10M
Temperature: 350°F
Portion and Shape Cookies
Line a baking sheet with parchment paper. Scoop the chilled dough with a 3‑inch cookie scoop or tablespoon, roll into balls, and gently flatten to about 1/2‑inch thickness.
Time: PT10M
Bake Cookies
Bake for 12 minutes, or until the edges are set but the centers still look slightly soft.
Time: PT12M
Temperature: 350°F
Cool Cookies
Remove the sheet from the oven, let the cookies rest on the sheet for 5 minutes, then transfer to a cooling rack to cool completely.
Time: PT10M
Prepare Ice Cream Filling
Allow the vanilla ice cream to soften for 5 minutes at room temperature. Using an ice‑cream scoop, place a generous scoop onto the flat side of a cooled cookie.
Time: PT5M
Assemble Sandwiches
Top the ice‑cream scoop with a second cookie, pressing gently to spread the ice cream to the edges. Repeat for all cookies.
Time: PT10M
Freeze Assembled Sandwiches
Place the assembled sandwiches on a parchment‑lined tray and freeze for at least 30 minutes to set the ice cream.
Time: PT30M
Make Optional Ganache Drizzle
In a small saucepan, heat the heavy cream until just simmering. Remove from heat, add chopped dark chocolate and butter, stir until smooth. Drizzle over the top of each sandwich before serving.
Time: PT5M
Nutrition Facts
- Calories
- 350
- Protein
- 5 g
- Carbohydrates
- 45 g
- Fat
- 18 g
- Fiber
- 3 g
Dietary info: Vegetarian
Allergens: Dairy, Gluten, Eggs
Last updated: April 19, 2026






