Ingredients
Equipment
Method
- Heat the oven to 400°F.
- Line an 18x13-inch rimmed baking sheet with parchment paper.
- Working with one pastry sheet at a time, spread each sheet with 1/4 cup pesto.
- Sprinkle each sheet with 3/4 cup mozzarella and 2 tablespoons Parmesan.
- Roll each sheet tightly into a log.
- Place the logs seam-side down in the refrigerator for 15 minutes, until firm enough to slice cleanly.
- Cut each log into 12 slices about 3/4 inch thick.
- Arrange 21 slices in centered rows of 1, 2, 3, 4, 5, and 6 to form a tree, then place the remaining 3 slices in a row beneath the widest row to make the trunk, leaving about 1/4 inch between slices.
- Beat the egg with the water.
- Brush the egg mixture over the exposed pastry.
- Bake for 20–25 minutes, until the pastry is puffed and deep golden brown.
- Let the tree rest on the baking sheet for 5 minutes before serving.
Notes
Keep the pastry cold for clean slicing. Store leftovers in an airtight container in the refrigerator for up to 3 days; freezing is suitable. For a dairy-free variation, use dairy-free pesto and cheeses.
