41. This mixture with cider, sour cream and yogurt produces a sweet puree with a hint of tartness . 42. But let's not overdo the sentiment; a touch of tartness helps the saccharine go down. 43. The mood is cozy and familial, and the relationships have authentic tartness as well as generic warmth. 44. If you prefer more tartness , whisk in a squeeze of lemon juice before adding the boiling water. 45. Panelists all commented on the tartness ; two described it as tasting more like grapefruit juice than orange juice. 46. The other pie flavors and fillings were off-balance, either in sweetness, tartness or sheer height. 47. 1 cup buttermilk or milk ( both work well, but I think the buttermilk adds a nice tartness ) 48. Balance the tartness of lime juice with enough palm sugar so the flavor of the coconut milk comes through. 49. The tartness of the berries and the sharpness of the horseradish brought out the deep sweetness of the roasted vegetables. 50. Their tartness distinguishes them : With their lemony tang, they quench the thirst and rest light on the tongue.