In a medium pan over medium to high heat, heat 1 Tsp. olive oil and then add half the onion (reserving remaining for garnish), garlic, half the jalapeño (unless averse to spice, then use less), and the corn kernels. Saute until corn becomes tender and bright yellow and onion becomes translucent and aromatic, about 6 minutes. Place all but 2 small spoonfuls of corn (for garnish) into a blender container. For the remaining corn, allow to blacken a bit in the pan.