Truly Lovin Toffee mixes sticky toffee sauce and cinder toffee pieces with a creamy toffee iced dessert.
The new variety joins Completely Mintal, Truffle Berry Fling and Madly Deeply.
All flavours in the Skinny Cow range contain less than 2% fat and 105 calories per serving.
The tubs retail at £2.99.
The company has also added new ingredients to its Skinny Cow sticks range to make them more indulgent.
Strawberry sticks have changed to Strawberries & Cream, Toffee to Toffee & Honeycomb, Chocolate Fudge to Triple Chocolate, and Mint Chocolate to Mint Double Chocolate.
Skinny Cow sticks retail at £2.29 for a box of four.
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