Mom's Pryaniki with Mint Glaze Recipe - Пряники

Bahan-bahan (35 porsi)

• 2 large egg yolks (reserve whites for frosting)
• 2 cups sugar
• 1 lb 2 cups sour cream
• 1 teaspoon baking soda
• 1/2 teaspoon white vinegar
• 1/2 teaspoon salt
• 1 teaspoon pure vanilla extract
• *5 cups all-purpose flour ((or 4 1/2 cups if using Canadian flour) plus more flour for hands)
• 2 large egg whites
• 2 cups powdered sugar (confectioners sugar)
• 1 tsp pure peppermint extract
• 1 tsp lemon juice
• Parchment paper to line cookie sheets