1sheetfrozen puff pastrythawed per package instructions
1largeegg, beaten with 2 tsp cold water
powdered sugar for dusting
1 1/2cupsheavy cream
1tsppure vanilla extract
1/3cupgranulated sugarplus additional as needed to taste
1/4tspcream of tarter
assorted berries for garnishingoptional
Instructions
Preheat oven to 375°F. Line a baking sheet with parchment or a silicone baking mat. Set aside.
Brush 12 large metal french horn cones with softened butter.
On a nonstick surface unroll puff pastry into approximately an 9-10 x 8 inch rectangle. Using a sharp knife or a pastry cutter, cut into 3/4 inch strips. Wind pastry strips around metal cones, starting at narrow end, slightly overlapping layers, to form a spiral. (When cutting the strips, strive for even size, don't stress over exact width)
Brush puff pastry on all sides with beaten egg wash. Dust with powdered sugar. Place seam side down on pan.
Bake for 15-20 minutes or until golden and puffed. Let cool completely on metal forms.
Filling: Use an electric mixer to whip cream, vanilla and cream of tarter until soft peaks form. Gradually add sugar, adjusting amount to taste.
Gently remove cooled cream horns from metal forms and fill with whipped cream, using a piping bag or a Ziploc bag with the corner cut off.
Serve immediately dusted with additional powdered sugar and fresh berries, if desired.
Store leftovers in an airtight container for up to 3 days.
Notes
The purpose of the cream of tarter is to help stabilize the whipped cream.
When making in advance, store unfilled pastry horns in an airtight container at room temperature. Fill with whipped cream just before serving.
To store filled cream horns, place into an airtight container lined with a paper towel for up to 3 days.