Betty Crocker Bisquick Pancake Mix Shake ‘n Pour Buttermilk 10.6oz Plastic Bottle. Makes 12-15 pancakes – just add water! Directions Do not eat raw pancake batter. 1. Add 1-1/2 cups cool water to container; replace lid tightly. 2. Shake container hard for 30 seconds. Tap bottom corners of container to loosen remaining mix; shake again. 3. Pour batter onto hot greased skillet forming 4-inch pancakes (if batter is too thick, add up to 1 tbsp cool water). High Altitude (3500-6500 ft): No change. Refrigerate batter up to 3 days.