The Simplest Ombrè Citrus Cream Tart.

Bahan-bahan (8 porsi)

• 1 sheet frozen puff pasty, thawed
• 1 egg, beaten
• raw coarse sugar, for sprinkling ((optional))
• 6 ounces creme fraiche, mascarpone, or cream cheese
• 1/2 cup plain greek yogurt
• 1 tablespoon Meyer lemon juice + 1-2 teaspoons zest, to your taste
• 1 teaspoon vanilla extract
• 1 -2 tablespoons honey, plus more for serving
• 6 -8 mixed color oranges, thinly sliced ((I used all blood oranges))
• 1/2 cup fresh raspberries
• fresh thyme, for serving