In a large bowl, add ground beef, jalapenos, shallots, panko, heavy cream, cheese, garlic powder, 1 tablespoon salt, and 1/2 teaspoon black pepper. Mix together well. Form into small patties and place in the oven for 12 to 15 minutes.
In a separate bowl, add creme fraiche, salsa verde, pinch of salt and pepper and mix together. Refrigerate until ready to serve with your sliders.
Lightly spread creme fraiche on both sides of buns. Place burgers in middle and pick it with a jalapeno.