I've made these hamburgers for years. They are similar to how my mom makes them. We don't even buy pre-made burgers anymore.
1 lb ground beef
1/2 cup onion, finely chopped
1 cup breadcrumbs (I use crushed saltines)
1 egg (this can be omitted if egg allergy)
salt and pepper to taste
2 Tbsp BBQ sauce
1 -2 garlic cloves, minced
1. Mix all together.
2. Make into patties. Makes 4 large or 6 small.
3. Press thumb in center to keep the burger from being too round while cooking.
4. Grill, bake or make on stove top.