Chocolate Angel Food Cake | Food Stuff

Ingredients

• 3 (1 oz.) squares semisweet or bittersweet chocolate, grated
• 3/4 cup cake flour
• 1 tsp. cream of tartar
• 12 egg whites
• 1 1/2 tsp. lemon juice
• 1/4 cup orange juice
• 1 tsp. orange zest
• 1/4 tsp. salt
• 6 cups (2 pints) strawberries, hulled and sliced
• 1 1/2 cups sugar
• 1/4 cup unsweetened cocoa powder
• 1/4 tsp. vanilla extract