Pour 1/2 cup of the orange juice into a small pot and heat over medium flame until hot; remove from heat. Sprinkle the gelatin on top of the hot orange juice, give it a stir, and let stand for 5 minutes to soften.
Combine the yogurt, ricotta, vanilla, brown sugar, orange zest, and the gelatin mixture in a food processor and process until smooth, thick, and custard-like.
Put the angel food cake in a trifle bowl and push it down so it sits on the bottom. Pour the remaining 1/2 cup of orange juice over the cake to moisten. Spoon the yogurt custard over the cake to cover. Chill in the refrigerator to set up.
To make the blueberry compote: Combine the blueberries, sugar, and lemon juice in a pot over medium heat. Stir gently until the berries breakdown and release their natural juice; the consistency should remain a bit chunky. Set aside to cool.
Top the chilled trifle with the blueberry compote and garnish with fresh mint.
![]("/food/images/spacers/spacer.gif"){kind=spacer}
