Preheat oven to 350°F.
Place all dry ingredients into a bowl and mix together.
Pour plant-based milk into the dry ingredients and stir until combined.
Place the sliced peaches and blueberries in a separate bowl and toss.
Put a 3-quart baking dish or cast-iron cocotte into the oven and melt the vegan butter.
Pour batter into the baking dish on top of the melted butter. Do not mix.
Put the fruit (peaches and blueberries with their juices) on top of the batter and melted butter. Do not stir.
Bake 45 – 50 minutes until the batter has set and is golden in color.