To make brownies: preheat oven to 350 degree Fahrenheit.

Mix flax meal and water together. Keep aside.

Grate the bottle gourd. Add peanut butter, honey, coco powder, vanilla essence, cinnamon and flax egg. Mix well.

Shift wheat flour, salt and baking soda over wet ingredients. Mix well.

Pour the batter into baking pan. Top it up with some crushed walnuts and bake for 25,30 minutes at 350'F.

Once cool down, keep in refrigerator so the crumb sets well.

Prepare Ice cream- Whip heavy cream till soft peaks.

Grind walnut into a fine powder.

Heat milk in a pan until it boils. Add in chocolate and wait till the chocolate melts completely.

Add walnut powder and sugar to milk chocolate mixture. Let it cool down.

Fold whipped cream in this walnut milk mixture and set in freezer for 4-5 hours.

Assembling brownie sandwiches- Carefully cut brownie to half horizontally into two even layers.

Spread ice cream over brownie base and carefully sandwich with brownie tops.

Wrap tightly in cling film and place in freezer till ice cream sets.

Use a warm knife to cut brownie sandwiches and serve.