ichidan verb, transitive verb
mix in; intermix; blend together
Transitive verb meaning to put things together and mix them, often implying a deliberate action of combining different items.
小麦粉と砂糖を入れ交ぜてください。
Please mix the flour and sugar together.
彼は冗談を入れ交ぜながら話し
He spoke, mixing in jokes.