Japanese by Example
Learning through examples in manga

How about some cookies with 〜でしょう

ご注文はうさぎですか? » Volume 1 » Page 64

After serving tea to her friends, Syaro brings out a plate of cookies.

シャロ:
「ハーブを使(つか)ったクッキーはいかがでしょう(わたし)()いたんですが…」
"How about some cookies made with herbs? Although I'm the one who baked them..."