Mix the flour, breadcrumbs and salt together. Add the beer and stir, preferably with an electric hand mixer, until the dough has a slightly runny consistency. Let the dough stand in the refrigerator for about 30 minutes.
Cut the turkey breast into 3 cm³ pieces. Turn the turkey breast pieces in the batter and fry them in the deep fryer at 170 ° C, stirring constantly, until they are golden brown.
Then drain on kitchen paper and serve immediately.