Fresh Jalapeno Corn Muffins

• 1 egg
• 1 jalapeno seeded
• 1 shallot (minced)
• 240 ml buttermilk
• 190 gr flour
• 150 gr corn kernels from two ears (cut)
• 120 ml oil
• 100 gr sugar
• 40 gr cornmeal
• 5 gr baking soda