Slim's Sauce is the house speciality at Slim Chickens - the sauce that's specific to the chain, named after it, and the one people most often ask about after their first visit. Here's what it actually is.
What Is Slim's Sauce?
Slim's Sauce is a creamy, slightly tangy, mildly spiced dipping sauce that serves as Slim Chickens' signature condiment. The base is mayonnaise-forward, but it has additional elements - a gentle heat, some sweetness, and a depth that makes it more complex than plain mayo or ranch.
The flavour profile:
- Creamy: The mayo base is prominent
- Mildly spiced: There's warmth but not heat - you can taste the spice without it building aggressively
- Slightly tangy: A vinegar or acid note lifts the richness
- Savoury-sweet: A small amount of sweetness rounds out the overall flavour
It occupies a similar territory to a Cajun-spiced mayo or a remoulade - creamy but with character. It was developed specifically for the Slim Chickens menu and is described as their "Slims Sauce" - not a generic condiment brought in from elsewhere.
Slim's Sauce Nutrition
From the Slim Chickens UK nutrition data, a 44.5g serving of Slim's Sauce contains:
- Calories: 225.7 kcal
- Protein: 0.6g
- Carbohydrates: 3.8g
- Fat: 23.2g
- Saturated fat: 1.7g
- Sugars: 2.9g
- Salt: 0.9g
225.7 kcal for a ~45g sauce pot is substantial. The fat content at 23.2g reflects the mayonnaise base. This is one of the higher-calorie sauce options in the Slim Chickens range, and it's worth being aware of as a meaningful calorie addition to any order.
How Does Slim's Sauce Compare to the Other Sauces?
The full Slim Chickens sauce range varies significantly in calorie content:
- Slim's Sauce: 225.7 kcal (highest in range)
- Garlic & Cheese: 246.4 kcal (even higher - very rich)
- Blue Cheese: 206.4 kcal
- Cayenne Ranch: 194.8 kcal
- House Ranch: 184.1 kcal
- Honey Mustard: 173.8 kcal
- Korean BBQ: 115 kcal
- Spicy BBQ: 84.7 kcal
- Honey BBQ: 80.1 kcal
- Mango Habanero: 69.5 kcal (lowest in range)
The clear divide is between the creamy/mayo-based sauces (Slim's, Garlic & Cheese, Blue Cheese, both Ranch options) which run from 184 to 246 kcal per pot, and the BBQ/fruit sauces (Honey BBQ, Spicy BBQ, Mango Habanero) which are 69–115 kcal.
Is Slim's Sauce Worth Ordering?
From a flavour perspective: yes. Slim's Sauce is the house sauce for a reason - it complements the chicken tenders better than most of the alternatives in my experience. The combination of creamy base and mild spice works with the lightly seasoned, marinated tenders in a way that doesn't overwhelm the chicken itself.
From a calorie perspective: 225.7 kcal is a significant addition to a meal. If you're eating a 4 Tenders Solo (303.3 kcal) and adding Slim's Sauce, you're adding roughly 75% of the calories of the tenders themselves in a side sauce. This doesn't mean don't order it - but it's worth knowing.
A lower-calorie alternative with some of the same creamy character is House Ranch at 184.1 kcal. For the fullest Slim Chickens experience, Slim's Sauce is the authentic choice. For a calorie-managed approach, House Ranch gets you something in the same neighbourhood for less.
Use the Slim Chickens calories calculator to add Slim's Sauce to your full order and track the total.