In a large bowl, mix together ketchup, honey, bourbon, brown sugar, and lemon juice.
Place frozen meatballs in your slow cooker.
Pour sauce mixture evenly over the meatballs. Stir to coat the meatballs as evenly as possible.
Cook on high for one hour.
Check on the meatballs and stir them occasionally, to evenly coat the meatballs with the sauce.
After one hour, turn down the temperature to low and cook on low for 2 hours.
Notes
Bourbon: a half cup creates a rich bourbon flavor to these meatballs. If you prefer less of a bourbon flavor, you can use a ¼ cup bourbon instead. Party ready: If your slow cooker has a Buffet setting as mine does, you can keep it on this setting throughout your party to keep the meatballs warm.Storage: allow the meatballs to cool completely, then store in an airtight container in the refrigerator for up to 5 days, or in the freezer for up to two months.