Blackberry Farm Griddle Cakes

INGREDIENTS

• 2/3 cup yellow cornmeal
• 1/3 cup brown rice flour
• 1/4 cup (1/2 stick) unsalted butter, melted
• Vegetable oil (for skillet)
• 1 teaspoon kosher salt
• 1 cup gluten-free oat flour
• 1/4 cup buckwheat flour
• 1 tablespoon baking powder
• 1/4 cup pure maple syrup
• 2 cups buttermilk
• 1 teaspoon baking soda
• 1 large egg