siggi's Icelandic yogurt - gluten-free cornbread

Ingredients

• 3/4 cup gluten-free all-purpose flour
• 1 1/4 cup cornmeal
• 2 Tbsp cane sugar
• 1/2 tsp salt
• 2 tsp baking powder
• 1/2 tsp baking soda
• 1 1/4 cup siggi’s plain filmjölk
• 2 large eggs
• 4 Tbsp butter, melted
• 1 cup corn, optional