The phrase "sandy texture" means that something feels or appears rough, grainy, or gritty, similar to the texture of sand.
Sentences with «sandy texture»
Leave about 1/3 of the butter in small, thin sheets; you want sizes to vary from about the size of a chickpea to sandy textured pieces. (lapechefraiche.com)
The orange and almond cake is warm and with a soft, sweet interior fragrant in orange with a slightly sandy texture from the almond meal. (notquitenigella.com)
If you skip them, you'll end up with muffins that have a dry sandy texture. (myketokitchen.com)