Place bacon drippings in skillet, and heat over medium-high heat 2 to 3 minutes or until drippings begin to gently smoke. Add corn kernels and onion to drippings, and sauté 3 to 4 minutes or until lightly charred. Stir together cornmeal and next 7 ingredients in a large bowl. Stir in corn mixture. Pour about 2 Tbsp. batter for each griddle cake onto a hot buttered griddle or into a large nonstick skillet. Cook 2 to 3 minutes or until tops are covered with bubbles and edges look dry and cooked. Turn and cook 2 to 3 minutes or until golden brown. Place in a single layer on a baking sheet, and keep warm in a 200° oven up to 30 minutes.