Slice each chicken breast horizontally to create two thinner cutlets, then pound them to an even 1/4-inch thickness using a meat mallet—this ensures even cooking in the crockpot. Season both sides generously with salt and pepper. Mince your garlic fresh (I find this makes a noticeable difference in flavor compared to pre-minced), chop the parsley finely, and measure out your lemon juice, capers, and broth. Having everything prepped and ready will make the browning and sauce-making steps seamless.

Place the flour in a shallow dish and coat each seasoned chicken cutlet thoroughly on both sides, shaking off excess flour. Heat the olive oil in a large skillet over medium-high heat until shimmering. Working in batches if needed, sear the chicken cutlets for 2 minutes per side until they develop a light golden-brown crust. This browning step builds flavor through the Maillard reaction, which is crucial for the final dish even though the chicken will finish cooking in the crockpot.

Carefully transfer all browned chicken cutlets to your crockpot in a single layer, or overlapping slightly if necessary. Set aside while you prepare the sauce.

In the same skillet used for browning, melt the butter over medium heat. Once melted, sprinkle in the flour and stir constantly for about 30 seconds to create a paste (this is a roux, which will thicken your sauce). Add the minced garlic and cook for 1 to 2 minutes, stirring frequently, until fragrant. I like to let the garlic cook just long enough to become fragrant but not brown, as burnt garlic will make the sauce bitter.

Slowly pour the chicken broth into the skillet while stirring constantly to avoid lumps. Let the mixture simmer for 3 to 4 minutes until it thickens into a light gravy consistency. Remove from heat and stir in the lemon juice and capers—the acidity brightens the sauce and gives it authentic piccata character. Pour the entire sauce over the chicken cutlets in the crockpot, making sure the chicken is mostly submerged.

Cover the crockpot and cook on low for 4 to 6 hours. The chicken will become incredibly tender and the sauce will infuse the meat with bright, tangy flavors. If you're short on time, you can cook on high for 2 to 3 hours, though low and slow develops the best flavor.

When the chicken is fork-tender and cooked through, transfer it to a serving platter or individual plates and pour the sauce over top. Garnish generously with the fresh chopped parsley just before serving. The bright green herb adds visual appeal and a fresh herbal note that completes the dish beautifully.