Preheat the oven to 400°F. In a large mixing bowl, combine the apples, apple juice, 2 tablespoons of the brown sugar, 1⁄8 teaspoon of the cinnamon, and 1⁄8 teaspoon of the nutmeg.
In a separate bowl, combine the oats and salt with the remaining 2 tablespoons brown sugar, 1⁄8 teaspoon cinnamon, and 1/8 teaspoon nutmeg. Add the butter and work the mixture with your fingertips until it comes together in moist clumps. Add the almonds and work them in.
Divide the apple mixture among four 1-cup ramekins or a 1-quart round or square baking dish. Top with the oat mixture. Bake for 25 minutes, or until the apples are hot and bubbling and the crumble has begun to brown. Let cool for a few minutes. Serve with a dollop of whipped cream.