Preheat the oven to 350F and line a baking sheet with parchment paper.
In a large bowl, combine all of the ingredients for the meatballs. Mix them well until the mixture is smooth.
Fill a small bowl with room temperature water. Dipping your fingers in the water will help shape the meatballs. Shape about 24 meatballs of 1 inch in diameter.
Place them on the prepared sheet pan and bake them in the preheated oven for 16-18 minutes. The center of the meatballs should reach a temperature of at least 165F.
Making the sauce
While the meatballs are baking, place a large skillet over medium heat.
Drizzle the olive oil in the hot pan and cook the garlic and chopped jalapenos for a couple minutes, in order to release their aromas.
Add the cranberry jelly to the skillet, breaking it apart and letting it melt. Once melted, mix in the chili sauce, brown sugar and lemon juice. Bring everything to a simmer. Cook for 2 minutes.
Take the sauce off of the heat and add in the cooked meatballs. Toss them in the sauce to coat.
Serve as an appetizer or with mashed potatoes for a more complete meal.