If you’re looking for a crowd-pleasing slow cooker meal that delivers maximum flavor with minimal effort, this 5-Ingredient Slow Cooker Flat Iron Steak Feast deserves a spot on your menu. A well-marbled flat iron steak slowly cooks in a rich blend of barbecue sauce, cherry preserves, cola, and juicy tomatoes until it becomes irresistibly tender and easy to shred.

The result is a sweet, smoky, tangy beef dish that works beautifully for casual gatherings, family dinners, game days, or summer celebrations.

Why You’ll Love This Recipe

Only 5 main ingredients

Minimal preparation required

Perfect for feeding a crowd

Tender, flavorful shredded beef

Excellent for sandwiches, rice bowls, or potatoes

Great for meal prep and leftovers

Ingredients

2 to 2½ pounds flat iron steak, trimmed of excess surface fat

1½ cups thick barbecue sauce

¾ cup cherry preserves or seedless cherry jam

1 cup cola (regular, not diet)

1½ cups tricolor cherry or grape tomatoes

Step 1: Prepare the Slow Cooker

Place the flat iron steak in the bottom of a 5- to 6-quart slow cooker.

If necessary, fold the steak slightly to fit, but keep it as flat as possible.

The beef should sit evenly in the center of the cooker.

Step 2: Add the Tomatoes

Scatter the whole cherry or grape tomatoes around the steak.

Leave them intact so they slowly soften and release their juices during cooking.

As they cook, they add brightness and freshness to the rich sauce.

Step 3: Prepare the Sauce

In a medium bowl, whisk together the barbecue sauce, cherry preserves, and cola.

Mix until smooth and fully combined.

The cola helps thin the sauce slightly while contributing sweetness and caramelization.

The magic happens when this sweet and smoky sauce slowly transforms the steak into fork-tender perfection.