\begin{tikzpicture}[node distance = 3.8cm, auto]
  \node [start] (init) {Mix \\ingredients};
  \node [block, below of=init, node distance = 3cm] (bulk_ferment) {Bulk ferment};
  \node [block, right of=init] (divide) {Divide};
  \node [block] at (divide |- bulk_ferment) (shape) {Shape};
  \node [block, right of=divide] (proof) {Proof};
  \node [success] at (proof |- bulk_ferment) (bake) {Bake};
  \path [line] (init) -- (bulk_ferment);
  \path [line] (bulk_ferment.north east) -- (divide.south west);
  \path [line] (divide) -- (shape);
  \path [line] (shape.north east) -- (proof.south west);
  \path [line] (proof) -- (bake);
\end{tikzpicture}