Custard Filled Pączki - Baked, Not Fried| Jenny Can Cook

Ingredients

• 1 1/2 cups all purpose flour
• 1/4 cup sugar
• 1/4 teaspoon salt
• 2 teaspoons (1 packet = 7 grams) yeast (instant or regular)
• 2/3 cup 1% milk – warmed to 120°F for instant/110°F for regular yeast
• 3 Tablespoons vegetable oil
• 2 egg yolks
• 1/2 teaspoon vanilla
• about 1/4 cup extra flour
• 1 Tablespoon melted butter
• 1/3 cup sugar for coating
• 1 cup homemade custard
• 4 teaspoons cornstarch
• 1 cup milk, low fat or whole
• one egg yolk