1. Mix first 3 ingredients in large bowl until blended. 2. Whisk egg, milk and 1 Tbsp. oil until blended. Add to flour mixture; mix well. 3. Spoon about 1 cup batter into each of 2 separate small bowls. Stir different flavor dry gelatin mix into batter in each of the 3 bowls. 4. Heat griddle or large heavy skillet on medium heat; brush lightly with some of the remaining oil. For each pancake, spoon about 1-1/2 Tbsp. of each colored batter, 1 at a time, into arc shape on griddle to resemble rainbow. Cook until bubbles form on tops, then turn to brown other sides.
* How to Keep Pancakes Warm: Before preparing the pancake batter, place baking sheet or ovenproof platter in 200ºF oven to warm. Cook pancakes as directed; place on warmed baking sheet. Cover, then return to oven to keep warm until all pancakes are cooked.
* How to Use Leftover Gelatin Mixes: Dissolve each of the 3 remaining gelatin mix flavors in 1 cup boiling water, using separate bowl for each flavor. Pour half of each gelatin mixture into one of 6 small dessert dishes. Refrigerate until firm. Top with thawed COOL WHIP Whipped Topping just before serving. Makes 6 servings.