Sugared Muffins

• 1 egg
• 1 blueberries (fresh)
• 5/8 full
• 2,600 gr muffin stir corn bread mix
• 450 gr corn bread mix
• 180 ml water
• 55 gr packed brown sugar
• 38 gr granulated sugar
• 28 gr butter
• 1 gr cinnamon (ground)