Eating Matzoh After Pesach
Excerpt from the Breslov Center's "Breslov Customs" document (.pdf )
Reb Levi Yitzchok Bender stated that it was the minhag among Ukrainian Chassidim, including Breslover Chasidim, to eat a piece of matzoh left over from Pesach on every Shabbos during the weeks of sefirah until Shavuos.
(Si'ach Sarfei Kodesh IV, 222. Cf. Rabbi Aharon Brandwein, Introduction to Tal Oros, re. Minhagei Alik; ‘Erkhei Yehoshua’ [Manestrich], Perach Shoshanim, 156; et al.)