Add mayonnaise, white wine vinegar, garlic powder, salt, pepper, and softened cream cheese to the yolks. Mix until combined and smooth. Break bacon up into little bits. Add ¾ of the bacon bits, diced jalapeno, and shredded cheddar cheese to the bowl with the yolks. Mix to combine.
¼ cup mayonnaise, 1 ounce cream cheese, ½ tablespoon white wine vinegar, ¼ teaspoon garlic powder, ¼ teaspoon salt, ⅛ teaspoon pepper, 5 strips bacon, 1 jalapeno, 2 tablespoons shredded cheddar cheese