Rainbow Hamantaschen

Name: Rainbow Hamantaschen
Cuisine: Asian, Middle Eastern
Ingredients: 2 cups (4 sticks) unsalted butter, vegan butter or margarine; 3/4 cup sugar; 1 cup (8 oz) unwhipped whipping cream (such as Rich's Whip); 6 cups all-purpose flour; 1 tsp vanilla extract; 1/2 tsp each red, orange, yellow, green, blue and purple gel food coloring *do NOT use liquid food coloring for this recipe because the dough will become too sticky; 1 egg, whipped (or cold water if you want this recipe to be completely egg free); 1 cup filling of your choice (apricot jam, raspberry preserves, chocolate chips, chocolate hazelnut butter, etc.)