Double Chocolate Zucchini Brownies

INGREDIENTS

2 cups

Zucchini that has been wrung

Egg yolk, large

1 1/4 cups

All-purpose flour

1 tsp

Baking soda

1/2 cup

Brown sugar, packed light

6 oz

Chocolate or good-quality chocolate chips that melt well, semisweet

1/4 cup

Cocoa powder, natural unsweetened

1 cup

Granulated sugar

3/4 tsp

Salt

1 tsp

Vanilla extract

3/4 cup

(6 ounces, 12 tablespoons) butter

2 cups

chocolate chips or chunks