ˌhonest-to-ˈgoodness adjective [only before noun]
simple and good:
plain honest-to-goodness home cooking

[TahlilGaran] Dictionary of Contemporary English ▲

honest to goodness
this is really true.
I'll be there on Tuesday, honest to goodness!

[TahlilGaran] English Idioms Dictionary ▲

honest-to-goodness
an honest-to-goodness thing or person is plain, simple, and exactly what they appear to be.
I'd much rather have an honest-to-goodness steak than any of the fancy stuff he cooks.
(always before noun)

[TahlilGaran] English Idioms Dictionary ▲

honest to goodness
adj. phr., informal Really; truly; honestly.
■ Used to emphasize something said.
When we were in Washington, we saw the President, honest to goodness.
"Honest to goodness, Jane, I think you are the messiest girl in the world," said Mother.

[TahlilGaran] English Idioms Dictionary ▲