How to Make It
Preheat oven to 375°F. Stir together oats, baking powder, cinnamon, ginger, salt, and 1/2 cup of the almonds in a large bowl. Stir together milk, syrup, vanilla, egg, and 3 tablespoons of the butter in a separate bowl. Add oat mixture to milk mixture; stir to combine. Fold in 1/2 of the berries.
Spoon mixture into an 11- x 7-inch baking dish coated with cooking spray. Top with remaining almonds and berries. Bake in preheated oven until set and golden, 35 to 40 minutes.
Remove from oven. Drizzle with remaining 3 tablespoons melted butter. Serve in shallow bowls; drizzle each serving with heavy cream and maple syrup.