Preheat oven to 350°F and line a baking sheet with parchment paper.
Combine first 8 ingredients of the meatballs and mix well. Add meat and mix until evenly incorporated.
Form 1-inch meatballs, using olive oil on your hands to keep the mixture from sticking. Place formed meatballs on parchment lined baking sheet.
Bake meatballs until cooked through 15 - 25 minutes, depending on size.
If making ahead, freeze meatballs in a single layer in a gallon sized freezer bag. If making immediately, proceed to make the sauce.
To Make the Sauce:
In a saucepan over medium-high heat, combine chili sauce and grape jelly, and stir frequently until jelly has melted completely. Place meatballs in a slow cooker and pour the heated sauce on top.
To make in an Instant Pot, add the sauce ingredients to the Instant Pot bowl and cook on the saute setting until the jelly has dissolved. Add the meatballs to the sauce and stir to coat.
Cook on slow cook setting on low for 3 to 4 hours or longer, stirring occasionally.
For Quicker Meatballs:
Add the meatballs to the sauce in the saucepan, stir to coat, and simmer uncovered for 30 minutes.
Notes
Source: Adapted from the Betty Crocker CookbookYou're Gonna Bake It After Allbakeitafterall.com