Nonna's Lemon Ricotta Biscuits

INGREDIENTS

• 1 large egg
• 1 tablespoon finely grated lemon zest (from 2 lemons)
• 1/2 teaspoon salt
• 1/3 cup thinly sliced almonds
• 1 tablespoon fresh lemon juice
• 1/2 teaspoon baking powder
• 1/2 cup (1 stick) unsalted butter, room temperature
• 1 cup whole-milk ricotta cheese
• 1/2 teaspoon almond extract
• 2 cups all-purpose flour
• 1/2 teaspoon baking soda
• 1 cup plus 1 teaspoon sugar or more as needed for sprinkling