Butter Pecan Strawberry Shortcake

2 cups all-purpose flour
1/2 cup toasted pecans, ground
1/2 cup granulated sugar
1/4 teaspoon salt
2 teaspoons baking powder
1/2 cup unsalted butter
1 egg
2/3 cup whipping cream
1 teaspoon vanilla extract

Garnish
1 cup whipping cream
2 tablespoons confectioners