Preheat the oven to 350°F and prep a muffin pan with oil, butter, or cupcake liners.
Blend the granola until fine, then mix in coconut oil until well incorporated.
Evenly distribute the crust mix for 6 tarts and form the tart crust ½ - ¾ to the top of the pan. Be sure to compact the crust on the bottom and sides to form a bowl for the custard to later be added into.
Bake crust for 10-13 minutes or until golden and firm.
Allow the crust to cool for 5 minutes before transferring to a cooling rack.